--- title: "423 15th Street #3BB, New York City, NY 11215" description: "423 15th Street #3BB, New York City, NY 11215 — Park Slope, New York City, NY. Listing Price $699,000. 2 bed, 1 bath Illustrative Buyer Commission Share of $10,485 at closing, based on a 3% buyer-broker commission." url: "https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/423-15th-street-3bb-ny-11215" source: "Real Estate Rebate Team" dateModified: "2026-10-08T01:54:47.262Z" status: "Active" --- # 423 15th Street #3BB, New York City, NY 11215 Park Slope, New York City, NY Courtesy of Compass Last updated: October 7, 2026, 9:54 PM ## At a Glance - **Listing Price**: $699,000 - **Beds**: 2 - **Baths**: 1 - **Common Charges**: $819 / mo - **Brokerage Fee**: Share Eligible ## The Private Brokerage Advantage As an independent luxury buyer representative, Régis shares 50% of the buyer-side commission he actually receives on your purchase. Eligible buyers receive that Buyer Commission Share directly at closing to offset closing costs, down payments, or renovations. The figures below are illustrative, based on a **3% buyer-broker commission**; your share follows the commission offered on the transaction. - **Contract Purchase Price**: $699,000 - **Illustrative Buyer Commission Share**: -$10,485* - **Illustrative Net Cost**: $688,515 *Illustrative Buyer Savings of $10,485 — 50% of a 3% buyer-broker commission, shared at closing.* [Request a private tour](https://realestaterebatesnewyork.com/contact) · [Estimate your Buyer Commission Share](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator) ## Photos (8) ![423 15th Street #3BB, New York City, NY 11215 — photo 1 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/274c51ca-cadb-4c24-b505-bdfa83ff5271.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 2 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/f7287bbf-f746-4c38-b569-9abed7bb98bb.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 3 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/7591cef3-070e-4083-b1a8-d763a268ad83.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 4 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/5b0b958b-886e-4893-aed8-890464e00f8e.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 5 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/60379dd9-6c40-40dc-b31d-cca2d53ecf98.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 6 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/ab45644f-b60d-4568-9a19-ae511b7d2c54.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 7 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/06797414-3f1d-46ac-bc70-a9f17117b97c.jpg) ![423 15th Street #3BB, New York City, NY 11215 — photo 8 of 8](https://realestaterebatesnewyork-bucket.nyc3.cdn.digitaloceanspaces.com/46442161-ea16-4bca-a3c7-c4b6e0aeab39.jpg) ## Property Overview Welcome to 423 15th Street where this bright and cheerful two-bedroom co-op thoughtfully blends contemporary comfort with classic Brooklyn character. The heart of this lovely apartment is a beautifully renovated open kitchen featuring abundant cabinetry, stainless-steel appliances, generous counter space, and a substantial center island with seating and storage. Perfect for entertaining, it overlooks a welcoming living room with high ceilings, oversized windows exposed brick, and new Pergo flooring. Both bedrooms are comfortably proportioned and offer ample closet space, while ceiling fans provide added comfort. The updated bathroom has a clean, contemporary aesthetic, with modern fixtures and a glass-enclosed tub and shower. A stacked washer and dryer conveniently located within the apartment adds an exceptional level of ease to everyday living. Other amenities include an assigned storage space in the basement and access to the building’s inviting outdoor patio—a peaceful retreat for relaxing, entertaining, or simply enjoying some fresh air. This lovely home also provides easy access to Prospect Park, the F/G subway lines, Nitehawk Cinema and the Park Slope Armory, all of which are just a few blocks away, Park Slope and nearby Windsor Terrace also offer a vibrant dining scene with cafes and restaurants in every direction, including Cuppa Hive, Krupa Bakery, Pasta Louise, Mash Inn, Lore, Double Windsor and more. With its well-designed layout, thoughtful renovations, generous natural light, in-unit laundry, private storage, and shared outdoor space, Apartment 3B offers the perfect combination of style, comfort, and functionality in the heart of Brooklyn. Contact us for a private viewing today! ## Property Details - **Property Type**: Co-op - **Beds**: 2 - **Baths**: 1 - **Rooms**: 4 - **Stories**: 4 - **Year Built**: 1920 - **Common Charges**: $819 / Monthly - **Listed On**: Oct 8, 2026 - **Days on Market**: 1 Days ### Residence Features - Building Washer Dryer Install Allowed - In Unit - Building Garden - Recessed Lighting - Stainless Steel Appliance(s) - Hardwood ## Estimated Monthly Payment **$4,354 / month**, assuming a 20% down payment ($139,800), a 6.5% interest rate and a 30-year term. The page's calculator lets a buyer change all three. - **Principal & Interest**: $3,535 - **Common Charges**: $819 Estimates only. Actual payments may vary. Confirm terms with your lender. ## Sales and market data ### Recent sales 10 apartments at 423 15th Street have recorded sales since October 2021, the most recent for $900,000 in July 2026. Prices are the figures recorded with the City, not asking prices. | Unit | Beds | Sq Ft | Sold Price | $/ft² | Sold | Source | | --- | --- | --- | --- | --- | --- | --- | | [4D](https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/423-15th-street-d-4D-ny-11215) (Apartment) | 2 | — | $900,000 | — | July 10, 2026 | MLS | | 2B (Apartment) | — | — | $613,000 | — | April 28, 2026 | City record | | 1C (Apartment) | 2 | 650 | $780,000 | $1,200/ft² | January 29, 2026 | City record · MLS | | 2D (Apartment) | — | — | $925,000 | — | May 8, 2025 | City record | | 4-C (Apartment) | 2 | — | $825,000 | — | December 19, 2024 | City record · MLS | | 3C (Apartment) | 2 | — | $765,000 | — | July 25, 2024 | City record · MLS | | 4C (Apartment) | 2 | — | $740,000 | — | July 20, 2023 | City record · MLS | | Entire property (Single Family Residence) | 3 | 2,400 | $3,475,000 | $1,448/ft² | December 30, 2022 | MLS | | 3B (Apartment) | 2 | — | $615,000 | — | July 21, 2022 | City record · MLS | | Entire property (Single Family Residence) | 2 | 972 | $1,695,000 | $1,744/ft² | December 22, 2021 | MLS | Every row is a recorded transaction, including ancillary spaces such as storage and staff rooms where they were sold separately. Those are excluded from the benchmark below. ### How this price compares - **This home**: $699,000 - **Median sold price**: $765,000 - **Difference**: -$66,000 (-8.6%) - **Comparable sales**: 5 - **Sales from**: July 2022 – January 2026 - **Middle half of those sales**: $740,000 – $780,000 Based on two-bedroom sales at 423 15TH Street. Square footage is recorded for only 1 of these 5 sales (20%), so no price per square foot is shown for this group. Co-op sales rarely carry a floor area, and a figure drawn from a handful of them would not describe the rest. ### How these sales were negotiated - **Sale-to-list price**: 97.6% (5 sales) - **Sold below asking**: 60% (5 sales) - **Typical time to find a buyer**: 38 days (4 sales) - **Typical time to close**: 61 days (4 sales) Based on two-bedroom sales at 423 15TH Street with the required listing and closing data. Sample sizes vary by metric. These are two separate periods measured on different clocks — time to find a buyer, and time from agreed deal to closing. They are medians of different sets of sales and do not add together into a single "days on market" figure. ### Price trend Median sale price, co-op two-bedroom sales in Park Slope | Year | Median sold price | Sales | | --- | --- | --- | | 2017 | $1,020,000 | 15 | | 2018 | $954,635 | 14 | | 2019 | $1,087,000 | 16 | | 2020 | $875,000 | 15 | | 2021 | $955,000 | 39 | | 2022 | $1,192,500 | 30 | | 2023 | $1,035,000 | 19 | | 2024 | $1,071,000 | 17 | | 2025 | $1,225,000 | 10 | | 2026 YTD | $1,265,000 | 13 | Based on recorded co-op two-bedroom sales in Park Slope. 2026 is year-to-date. Sales data through July 2026. Sale prices are the consideration recorded with the City in ACRIS, and each sale is dated by the day the City recorded it. A closing date reported to the MLS typically falls one to two weeks earlier. Recorded sales describe what has already happened and are not an appraisal, a valuation, or an estimate of what this home will sell for. [See every recorded sale at 423 15TH Street](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/423-15th-street) ## Property Taxes This apartment is part of a co-op that is taxed as one lot shared across 16 apartments. The corporation’s 2026 property tax bill was $114,571 for the whole building. Shareholders cover it through their monthly maintenance rather than a separate bill for this unit. [See the full property tax history for 423 15TH Street](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/423-15th-street) [How we source and calculate NYC property tax data](https://realestaterebatesnewyork.com/nyc-property-tax-data-methodology) ## About The Building ### 423 15th Street Park Slope · Stock Cooperative 423 15th Street, Brooklyn, NY 11215 A building in Park Slope, currently featuring 1 active listing. - **Year Built**: 1920 - **Active Units**: 1 - **Floors**: 4 [View the building page](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/423-15th-street) ### Available Residences — For Sale (1) | Unit | Beds | Baths | Size | Price / Ft² | Price | Listing Office | Listed Date | Days on Market | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [3BB](https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/423-15th-street-3bb-ny-11215) | 2 | 1 | — | — | $699,000 | Compass | Oct 8, 2026 | 0 days | ### Recently Sold (1) | Unit | Beds | Baths | Size | Price / Ft² | Sold Price | Listing Office | Listed Date | Sold Date | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [4D](https://realestaterebatesnewyork.com/buy/newyorkcity/brooklyn/11215/423-15th-street-d-4D-ny-11215) | 2 | 1 | — | — | $900,000 | Corcoran Group | Mar 11, 2026 | Jul 10, 2026 | ## Park Slope Overview of Park Slope [Explore Park Slope](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/park-slope) · [All Neighborhoods](https://realestaterebatesnewyork.com/neighborhoods) ### Nearby Park Slope - [Prospect Heights real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/prospect-heights) - [Gowanus real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/gowanus) - [South Slope real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/south-slope) - [Prospect Park real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/prospect-park) - [Boerum Hill real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/boerum-hill) - [Carroll Gardens real estate for sale](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/carroll-gardens) ## Related Links - [423 15TH Street — building page](https://realestaterebatesnewyork.com/buildings/new-york-city/brooklyn/423-15th-street) - [Park Slope neighborhood guide](https://realestaterebatesnewyork.com/neighborhoods/new-york-city/brooklyn/park-slope) - [Estimate your Buyer Commission Share and closing costs](https://realestaterebatesnewyork.com/calculators/buyer-closing-cost-calculator) - [Contact Régis Roumila](https://realestaterebatesnewyork.com/contact) --- > RLS IDX Data display by Real Estate Rebate Team. This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc., All rights reserved. IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. > All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and the number of bedrooms listed is for informational purposes and is not a legal conclusion. Please consult with your own architect or engineer for exact dimensions and legal specifications.